10. Have you locked the door? 11. I can't go out because I haven't done my work yet. 12. He has written a letter but he can't find a stamp. 13. Here are your shoes. I have just polished them. 14. I left my house at 8 o'clock and I arrived here at 12 o'clock. 15. Have you ever been here? Yes, I spent my vacation here last year. 16. Did you hear? Susanna has got married. 17. I have never played golf. 18. He has smoked twenty sigarettes today. 19. Tom lost the key yesterday. 20. Did you see this film on TV yesterday?
8.D
9.D
10.A
11.D
12.A
надеюсь правильно.удачки